#51F166#51F166

#51F166 is a very light, highly saturated green. Relative luminance 0.656; OKLCH L 84.6% C 0.225 H 145.3°. Best body text is #000000 at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#51F166
RGB	rgb(81, 241, 102)
HSL	hsl(128, 85%, 63%)
HSV	hsv(128, 66%, 95%)
CMYK	cmyk(66.4%, 0%, 57.7%, 5.5%)
CIE-LAB	lab(84.80, -68.60, 54.22)
CIE-LCH	lch(84.80, 87.44, 141.68°)
OKLab	oklab(84.61% -0.1854 0.1282)
OKLCH	oklch(84.61% 0.225 145.3)
XYZ	xyz(37.2444, 65.6153, 23.2700)
Luminance	0.6562 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F166 #F151DC

analogous

#8CF151 #51F166 #51F1B6

triadic

#51F166 #6651F1 #F16651

tetradic

#51F166 #518CF1 #F151DC #F1B651

square

#51F166 #518CF1 #F151DC #F1B651

split-complementary

#51F166 #B651F1 #F1518C

monochromatic

#0FB925 #18EC34 #51F166 #8AF698 #C2FACA

Accessibility & contrast

On white

1.49

#51F166 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.12

#51F166 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F166

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F166	#FFFFFF	#000000	##000000
##51F166	1.00	1.49	14.12	14.12
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.12	21.00	1.00	1.00
##000000	14.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5DC58

Deuteranopia (green-blind)

#E2CF71

Tritanopia (blue-blind)

#1DEBD3

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #51f166;
/* rgb */ color: rgb(81, 241, 102);
/* oklch */ color: oklch(84.6% 0.225 145.3);

Tailwind

colors: {
  custom: {
    50: '#94f795',
    500: '#51f166',
    950: '#000000',
  },
}

SCSS

$custom: #51f166;
$custom-light: #94f795;
$custom-dark: #000000;

JSON

{
  "hex": "#51f166",
  "rgb": {
    "r": 81,
    "g": 241,
    "b": 102
  },
  "hsl": {
    "h": 127.875,
    "s": 85.106,
    "l": 63.137
  },
  "oklch": {
    "l": 0.84609,
    "c": 0.22541,
    "h": 145.3
  },
  "luminance": 0.65619
}

Semantic roles & 50–950 ramp

primary

#51F166

secondary

#B82FA6

accent

#04C4E2

background

#FCFFFC

surface

#F5FFF5

border

#CFD7CF

text

#0F170E

muted

#80857F

Preview Lab

Preview with #51F166

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →